No type arguments expected for class Call

Issue

I'm having an issue.I have project and then i copy paste into an other new project and i'm facing this error

No type arguments expected for class Call

In the first project i didn't have any problem... Here is my interface class which i have the error

interface ApiInterface {
    @GET("data/2.5/weather?q=Prague")
    fun getWeatherData(@Query("units") units: String,
                       @Query("appid") appId: String)
            :Call<WeatherData> //here is the error

}

and here is my WeatherData class

data class WeatherData(
        @SerializedName("coord") val coord: Coord,
        @SerializedName("weather") val weather: List<Weather>,
        @SerializedName("base") val base: String,
        @SerializedName("main") val main: TemperatureData,
        @SerializedName("visibility") val visibility: Int,
        @SerializedName("wind") val wind: Wind,
        @SerializedName("clouds") val clouds: Clouds,
        @SerializedName("dt") val dt: Int,
        @SerializedName("sys") val sys: Sys,
        @SerializedName("id") val id: Int,
        @SerializedName("name") val name: String,
        @SerializedName("cod") val cod: Int
)

data class Sys(
        @SerializedName("type") val type: Int,
        @SerializedName("id") val id: Int,
        @SerializedName("message") val message: Double,
        @SerializedName("country") val country: String,
        @SerializedName("sunrise") val sunrise: Int,
        @SerializedName("sunset") val sunset: Int
)

data class Coord(
        @SerializedName("lon") val lon: Double,
        @SerializedName("lat") val lat: Double
)

data class TemperatureData(
        @SerializedName("temp") val temp: Double,
        @SerializedName("pressure") val pressure: Int,
        @SerializedName("humidity") val humidity: Int,
        @SerializedName("temp_min") val tempMin: Double,
        @SerializedName("temp_max") val tempMax: Double
)

data class Weather(
        @SerializedName("id") val id: Int,
        @SerializedName("main") val main: String,
        @SerializedName("description") val description: String,
        @SerializedName("icon") val icon: String
)

data class Clouds(
        @SerializedName("all") val all: Int
)

data class Wind(
        @SerializedName("speed") val speed: Double,
        @SerializedName("deg") val deg: Int

Solution

Just verify that you've imported the correct package from Retrofit.

The correct one is

retrofit2.Call

not to be confused with, for example

android.telecom.Call

Answered By - Ollaw